Opinions Wanted

Welcome Arbiter.
The first thing that I picked up on when I looked at Warrior of the Rose is that the helmet colours don’t match any of the other colours you’ve used elsewhere in the pic (much lighter shade of green, skin tone horns). Whilst this does draw attention to the face (which looks quite good, just having the eyes doesn’t detract here at all, it gives him a lot of expression), it does jar a bit against the rest of the image. My next critique would be the colour layering. If you look at where you’ve placed certain items and how you’ve coloured them, some of them are getting lost by being immediately next to something of exactly the same colour, i.e. the right glove, the cape and background aura. I’d suggest changing the colour of one of these (maybe make the cape red?) or removing one altogether (personally I don’t think the aura adds that much to the overall image). Lastly, I always say this, but don’t use to many different colours, all the best costumes have 4 tops. In this pic you’ve got (excluding the brown body colour), dark grey/ black, silver, two different greens, red, cream/ peach and three different shades of yellow. I think that maybe keeping the armour as it is would be the way to go here, as it looks quite good, change the helmet to match the armour, make the cape red, the right glove green maybe, and keep the under armour dark grey/ black. But that’s up to you, it’s all about experimenting until you find something you’re happy with.
Apart from that, not bad. I’m sure other people will have different ideas to me, so don’t worry if you don’t like my suggestions.
Anyway, as moderator I have to ask you to make sure you read the forum rules, but apart from that, welcome and have fun posting.

Welcome to the forums, I hope you have a great time with HM.

1. Following up JR’s suggestion, you may want to make the aura partially transparent. (With item selected, type or slide Alpha value for each color.) It may mute the contrasting color a bit, but it might also give the character a bit of weight.
2. Not knowing your intent, it strikes me that if the gray, scaly body parts are armor, you might match them a bit more to the shield. If they are supposed to be his flesh, you might make them green and just slightly darker than obvious. I like that explanation better, btw; living rose warriors = .

You want my opinion? It is an AMAZING start. Very cool and creative.